Home / 230,206.28-317,679.82-128,231.48

Finding the Fourth Proportional to 230,206.28, 317,679.82 and 128,231.48

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Solution

The fourth proportional to 230,206.28, 317,679.82 and 128,231.48 is: 176,956.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,206.28 : 317,679.82 = 128,231.48 : x
  2. Step 2: Convert to fraction form
    230,206.28/317,679.82 = 128,231.48/x
  3. Step 3: Cross multiply
    230,206.28x = 317,679.82 × 128,231.48
  4. Step 4: Simplify right side
    230,206.28x = 40,736,553,484.73
  5. Step 5: Solve for x
    x = 40,736,553,484.73/230,206.28
  6. Step 6: Final answer
    x = 176,956.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.